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Inhibition of biofilm of S. aureus. (a) Digital images of biofilm formation of S. aureus with the addition of PBS, ZnO, and CAZ under NIR (808 nm, 2.0 W cm−2) for 48 h. (b) Quantitative representation of the biofilm formation under different conditions (n = 3). ∗∗∗P < 0.001. (c) Confocal images of S. aureus biofilms stained by calcein-AM/PI under different treatments (scale bar, 100 μm).
